X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fflow.h;h=7606cb3d92c1d5fcd08cebbe2d02d4f98b4fb1ba;hb=f6d1465cec98fd7e83845d24fb394145bbbcf531;hp=c451073712e51fd52d234cb0da03a78664dbc1ea;hpb=fa8223b7fd02890647eb2bf3d3b5b27ee4d32a21;p=openvswitch diff --git a/lib/flow.h b/lib/flow.h index c4510737..7606cb3d 100644 --- a/lib/flow.h +++ b/lib/flow.h @@ -35,7 +35,7 @@ struct ofpbuf; /* This sequence number should be incremented whenever anything involving flows * or the wildcarding of flows changes. This will cause build assertion * failures in places which likely need to be updated. */ -#define FLOW_WC_SEQ 4 +#define FLOW_WC_SEQ 7 #define FLOW_N_REGS 5 BUILD_ASSERT_DECL(FLOW_N_REGS <= NXM_NX_MAX_REGS); @@ -45,12 +45,12 @@ BUILD_ASSERT_DECL(FLOW_N_REGS <= NXM_NX_MAX_REGS); #define FLOW_DL_TYPE_NONE 0x5ff /* Fragment bits, used for IPv4 and IPv6, always zero for non-IP flows. */ -#define FLOW_FRAG_ANY (1 << 0) /* Set for any IP fragment. */ -#define FLOW_FRAG_LATER (1 << 1) /* Set for IP fragment with nonzero offset. */ -#define FLOW_FRAG_MASK (FLOW_FRAG_ANY | FLOW_FRAG_LATER) +#define FLOW_NW_FRAG_ANY (1 << 0) /* Set for any IP frag. */ +#define FLOW_NW_FRAG_LATER (1 << 1) /* Set for IP frag with nonzero offset. */ +#define FLOW_NW_FRAG_MASK (FLOW_NW_FRAG_ANY | FLOW_NW_FRAG_LATER) -BUILD_ASSERT_DECL(FLOW_FRAG_ANY == NX_IP_FRAG_ANY); -BUILD_ASSERT_DECL(FLOW_FRAG_LATER == NX_IP_FRAG_LATER); +BUILD_ASSERT_DECL(FLOW_NW_FRAG_ANY == NX_IP_FRAG_ANY); +BUILD_ASSERT_DECL(FLOW_NW_FRAG_LATER == NX_IP_FRAG_LATER); struct flow { ovs_be64 tun_id; /* Encapsulating tunnel ID. */ @@ -70,21 +70,24 @@ struct flow { uint8_t dl_src[6]; /* Ethernet source address. */ uint8_t dl_dst[6]; /* Ethernet destination address. */ uint8_t nw_proto; /* IP protocol or low 8 bits of ARP opcode. */ - uint8_t tos_frag; /* IP ToS in top bits, FLOW_FRAG_* in low. */ + uint8_t nw_tos; /* IP ToS (including DSCP and ECN). */ uint8_t arp_sha[6]; /* ARP/ND source hardware address. */ uint8_t arp_tha[6]; /* ARP/ND target hardware address. */ + uint8_t nw_ttl; /* IP TTL/Hop Limit. */ + uint8_t nw_frag; /* FLOW_FRAG_* flags. */ + uint8_t reserved[6]; /* Reserved for 64-bit packing. */ }; /* Assert that there are FLOW_SIG_SIZE bytes of significant data in "struct * flow", followed by FLOW_PAD_SIZE bytes of padding. */ -#define FLOW_SIG_SIZE (108 + FLOW_N_REGS * 4) -#define FLOW_PAD_SIZE 0 -BUILD_ASSERT_DECL(offsetof(struct flow, arp_tha) == FLOW_SIG_SIZE - 6); -BUILD_ASSERT_DECL(sizeof(((struct flow *)0)->arp_tha) == 6); +#define FLOW_SIG_SIZE (110 + FLOW_N_REGS * 4) +#define FLOW_PAD_SIZE 6 +BUILD_ASSERT_DECL(offsetof(struct flow, nw_frag) == FLOW_SIG_SIZE - 1); +BUILD_ASSERT_DECL(sizeof(((struct flow *)0)->nw_frag) == 1); BUILD_ASSERT_DECL(sizeof(struct flow) == FLOW_SIG_SIZE + FLOW_PAD_SIZE); /* Remember to update FLOW_WC_SEQ when changing 'struct flow'. */ -BUILD_ASSERT_DECL(FLOW_SIG_SIZE == 128 && FLOW_WC_SEQ == 4); +BUILD_ASSERT_DECL(FLOW_SIG_SIZE == 130 && FLOW_WC_SEQ == 7); void flow_extract(struct ofpbuf *, uint32_t priority, ovs_be64 tun_id, uint16_t in_port, struct flow *); @@ -93,14 +96,17 @@ void flow_zero_wildcards(struct flow *, const struct flow_wildcards *); char *flow_to_string(const struct flow *); void flow_format(struct ds *, const struct flow *); void flow_print(FILE *, const struct flow *); -static inline int flow_compare(const struct flow *, const struct flow *); +static inline int flow_compare_3way(const struct flow *, const struct flow *); static inline bool flow_equal(const struct flow *, const struct flow *); static inline size_t flow_hash(const struct flow *, uint32_t basis); +void flow_set_vlan_vid(struct flow *, ovs_be16 vid); +void flow_set_vlan_pcp(struct flow *, uint8_t pcp); + void flow_compose(struct ofpbuf *, const struct flow *); static inline int -flow_compare(const struct flow *a, const struct flow *b) +flow_compare_3way(const struct flow *a, const struct flow *b) { return memcmp(a, b, FLOW_SIG_SIZE); } @@ -108,7 +114,7 @@ flow_compare(const struct flow *a, const struct flow *b) static inline bool flow_equal(const struct flow *a, const struct flow *b) { - return !flow_compare(a, b); + return !flow_compare_3way(a, b); } static inline size_t @@ -141,10 +147,13 @@ typedef unsigned int OVS_BITWISE flow_wildcards_t; #define FWW_ARP_THA ((OVS_FORCE flow_wildcards_t) (1 << 9)) #define FWW_ND_TARGET ((OVS_FORCE flow_wildcards_t) (1 << 10)) #define FWW_IPV6_LABEL ((OVS_FORCE flow_wildcards_t) (1 << 11)) -#define FWW_ALL ((OVS_FORCE flow_wildcards_t) (((1 << 12)) - 1)) +#define FWW_NW_TTL ((OVS_FORCE flow_wildcards_t) (1 << 12)) +#define FWW_NW_DSCP ((OVS_FORCE flow_wildcards_t) (1 << 13)) +#define FWW_NW_ECN ((OVS_FORCE flow_wildcards_t) (1 << 14)) +#define FWW_ALL ((OVS_FORCE flow_wildcards_t) (((1 << 15)) - 1)) /* Remember to update FLOW_WC_SEQ when adding or removing FWW_*. */ -BUILD_ASSERT_DECL(FWW_ALL == ((1 << 12) - 1) && FLOW_WC_SEQ == 4); +BUILD_ASSERT_DECL(FWW_ALL == ((1 << 15) - 1) && FLOW_WC_SEQ == 7); /* Information on wildcards for a flow, as a supplement to "struct flow". * @@ -159,12 +168,12 @@ struct flow_wildcards { struct in6_addr ipv6_src_mask; /* 1-bit in each signficant ipv6_src bit. */ struct in6_addr ipv6_dst_mask; /* 1-bit in each signficant ipv6_dst bit. */ ovs_be16 vlan_tci_mask; /* 1-bit in each significant vlan_tci bit. */ - uint8_t tos_frag_mask; /* 1-bit in each significant tos_frag bit. */ + uint8_t nw_frag_mask; /* 1-bit in each significant nw_frag bit. */ uint8_t zeros[5]; /* Padding field set to zero. */ }; /* Remember to update FLOW_WC_SEQ when updating struct flow_wildcards. */ -BUILD_ASSERT_DECL(sizeof(struct flow_wildcards) == 80 && FLOW_WC_SEQ == 4); +BUILD_ASSERT_DECL(sizeof(struct flow_wildcards) == 80 && FLOW_WC_SEQ == 7); void flow_wildcards_init_catchall(struct flow_wildcards *); void flow_wildcards_init_exact(struct flow_wildcards *); @@ -172,12 +181,6 @@ void flow_wildcards_init_exact(struct flow_wildcards *); bool flow_wildcards_is_exact(const struct flow_wildcards *); bool flow_wildcards_is_catchall(const struct flow_wildcards *); -bool flow_wildcards_set_nw_src_mask(struct flow_wildcards *, ovs_be32); -bool flow_wildcards_set_nw_dst_mask(struct flow_wildcards *, ovs_be32); -bool flow_wildcards_set_ipv6_src_mask(struct flow_wildcards *, - const struct in6_addr *); -bool flow_wildcards_set_ipv6_dst_mask(struct flow_wildcards *, - const struct in6_addr *); void flow_wildcards_set_reg_mask(struct flow_wildcards *, int idx, uint32_t mask);